Press

Details Press Press

B - Operations, Transporting

21

D

113/73

B21D 28/14 (2006.01) B21D 35/00 (2006.01) B21D 43/02 (2006.01) B30B 15/14 (2006.01)

Patent

CA 2014952

ABSTRACT OF THE DISCLOSURE A press performs first-stage press working on a long plate member (9) with a first upper die (83) and a first lower die (183) which are provided in a first working station (81), and then performs second-stage press working on the long plate member (9) with a second upper die (94) and a second lower die (194) which are provided in a second working station (82). The first upper die (83) and the first lower die (183) circularly move in opposite directions, to press-work the long plate member (9). The second upper die (94) and the second lower die (194) circularly move in opposite directions, to press-work the long plate member (9). The circular motions of the first upper die (83) and the first lower die (183) and the circular motions of the second upper die (94) and the second lower die (194) are 180° out of phase. Inertial forces caused in the respective dies (83, 183, 94, 194) are mutually cancelled, whereby the press can be entirely kept in good mass balance. - 28 -

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